6 resultados para Lagunas argentinas

em Portal de Revistas Científicas Complutenses - Espanha


Relevância:

20.00% 20.00%

Publicador:

Resumo:

Se lleva a cabo un estudio fitosociológico de la vegetación de las lagunas glaciares de Urbión y Neila (Soria-Burgos), proponiendo un nuevo sintaxon Sparganio-Isoetetum echinosporae Rivas-Martínez & G. Navarro as. nova (Subulario-Isoetion echinosporae, Littorelletalia, Littorelletea). En el seno de dicha asociación es reconocida una subasociación, Sparganio angustifolii-Isoetetum echinosporae juncetosum bulbosi subas. nova. Asimismo, se denuncia la presencia relícitica de algunas plantas boreo-alpinas, como Carex limosa, Isoetes echinospora y Subularia aquatica.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

The authors present here a list of 32 mosses belonging to 15 families: Brachytheciaceae, Cryphaeaceae, Entodontaceae, Hedwigiaceae, Hypnaceae, Leptodontaceae, Meteoriaceae, Neckeraceae, Pilotrichaceae, Polytrichaceae, Pterobryaceae, Racopilaceae, Rigodiaceae, Stereophyllaceae, and Trachypodaceae, all collected in the mountainous forests of the Yungas of the NW of the Argentina (Jujuy, Salta, Catamarca and Tucumán provinces), and also in the rainforests from the NE of the country (Misiones province). Eight species: Atrichum polycarpum, Chrysohypnum elegantulum, Pilosium chlorophyllum, Pilotrichella flexilis, Porotrichodendron lindigii, Pseudotrachypus martinicensis, Steerecleus scariosus, and Thamnobryum fasciculatum are new records for the bryologic flora from Argentina. Braunia imberbis and Squamidium brasiliense are two new records for the bryophytic flora of the Catamarca province; Porotrichodendron superbum is new for the Salta province, while Forsstroemia coronata is the first record for the Catamarca and Jujuy provinces. Aerolindigia capillacea, Braunia reflexifolia, Chryso-hypnum diminutivum, Meteorium deppei and Meteoridium remotifolium are five new citations for the Jujuy province, and Schoenobryum concavifolium is new for the bryophytic flora of the Misiones province. Many studied species occur more frequently in the Yungas than in the NE rainforests; others show separated distribution but live in both areas, the Yungas and Paranaense area, and others are more or less restricted to the Paranaense rainforest of the NE of Argentina. The taxonomy of species is updated, and comments are included on bibliographical precedents, ecology and chorology of each taxon.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Canna tandilensis is proposed as a species new to science. Plants grow wild terrestrial, in rocky places exposed to solar radiation forming dense colonies whose individuals of small to medium length, produce reduced inflorescences with large and few yellow to bright orange flowers and narrow and reflexed staminodes. The specific epithet refers to the city of Tandil at the south of Buenos Aires Province where the holotype comes from. It is related to other species having reduced inflorescences, narrow leaves and staminodes, and nectar guides in androecium pieces such as C. lineata. A detailed description of the new species is given, along with a study of the morphological vegetative and floral characters. These characters were compared with those from two other species C. glauca and C. lineata. According to these new evidences two groups of similar species of the genus are suggested. The number of species surveyed until now in Argentina rises to sixteen.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Se preenta un estudio de la vegetación y condiciones mabientales de algunas de las lagunas saladas situadas en la comarca de Los Monegros. Se reconocen 13 asociaciones y 11 subasociaciones. Por último, se sugieren algunas medidas para la conservación de estos enclaves.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

In this article I study certain aspects that constitute the “grammar” of the field of management and business. By observing the way in which three prestigious business schools ‒one American, one Spanish and one Argentinean‒ present their offer in executive education ‒management business administration‒, I intend to reconstruct the way in which the reasons, the values and the justifications are structured. The article is based mainly on ethnographies carried out in the informative sessions that these three schools organized in luxury hotels in work of interviews and documentation’s analysis carried out in large Argentinean companies.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Desde tiempos de José Carlos Mariátegui, la crítica literaria indigenista viene articulando un discurso etnocentrista cuyo eje de producción se sitúa en Perú y los países vecinos, pero rara vez se ha mencionado una obra argentina que trate sobre las desigualdades que sufren los indígenas de ese país. Ni siquiera la academia argentina ha analizado ninguna novela desde la óptica indigenista.En un país cuyos gobiernos, desde el siglo XIX, han tratado de borrar cualquier traza de sangre indígena en su población, ya sea mediante la asimilación, exterminio o invisibilidad, y cuyas zonas de mayor asentamiento indígena se encuentran lejos del hegemónico Buenos Aires, las narraciones de problemas sociales ajenos quedaban encajonadas en el recóndito mundo de la literatura regional.Sin embargo, durante los años de eclosión del movimiento indigenista, escritores argentinos se hicieron eco de los sufrimientos y demandas de sus compatriotas indígenas por medio de novelas que sobrepasaron el peyorativo epíteto regionalista y que incomprensiblemente, han sido olvidadas.En este artículo, que forma parte de un estudio más amplio, se aborda el silencio crítico, se contextualiza la producción indigenista de la época y se analizan brevemente algunas de las obras.